Question

SA/T
9
176. A train of 80 meter length crosses a 70 meter lon
platform in 5 minutes. The train travel in an hour
(A) 1.8 KM
(B) 9 KM
(C) 150 meters
(D) 750 meters​

Answer 1

Answer: A) 1.8 km

Step-by-step explanation:

Speed = Total distance (train + platform)/ time

1 min = 60 sec, 5 min = 300 sec

Speed (m/s) = (80 + 70)/300

Speed (m/s) = 150/300 = 1/2

Convert it into km/hr [Multiply by 18/5]

1/2 * 18/5

= 1.8 km/hr

Speed (km/hr) = 1.8 km/ hr

In one hour, the train travels 1.8 km.

Answer: 1.8 km.

Thanks.